Steam generator



.Func 17, H240 G. A. BRYAN STEAM GENERATOR Filed nov'. 22, 1919.

Patented June '17, 1924.

UNITED STATES GEORGE L BRYAN, 0F PERU, INDIANA.

STEAM GENERATOR.

Application med November 22, 1919. 'Serial No.v 839,945.

To all 'whom it may concern.'

Be it known that l, Gnonon A. BRYAN, a citizen of the United States,residing at Peru, in the county of Miami and- State of Indiana, haveinvented certain-new and uselul lmprovements in Steam Generators, of

, which the following is a full, clear, and exact description.

This invention relates to steam generators and has special reference togenerators adapted for steam-driven automobiles, trucks and tractors.The primary object of my invention is to provide a steam generator, theparts of which are easily accessible and which may be taken a art forcleanin and repairs and reassemb ed speedily an accurately. A furtherobject of my invention is to provide a generator in which the water andsteam shall have free and uniform circulation through those partethereotwhich are subjected to the heat. Further objects and advantagesof the invention will appear Jfrom the detailed description whichfollows hereinafter.

ln. the accompanying drawing, Fig.` 1 is a side elevation of thegenerator with the side wall of the enclosure or hood removed.

Fig. 2 is a front end elevation of the generator with a portion of thefront wall of the cover broken away.

lfig. 3 is a plan of the nerator.

lhe generator comprises essentially a ysteam drum or dome l arrangedhorizondit tally in a lore and alt direction at the top of thestructure, two headers or distributing drums 2 and 3 respectivelyarranged parallel with the steam drum but at the lower portion of thegenerator and on each side thereof, and a series of tubes or coilsindicated generally bv d, extending from the headers to the steam drum.'lhe steam drum and the tubes d are housed within a heating chamberformed by a hood or cover 5, which may be understood to be in sectionshinged or otherwise secured together so as to be removable wholly or inpart to give access to those portions of the generator within it. Thetwo headers 2 and 3 are connected across their forward ends by ahorizontal circulating pipe 6 and across their rear ends by a similarpipe 7. At the central point of each of these pipes 6 and 7 is aif-coupling 8 and 9 respectively, from which rise vertical standpipes 10and 11 to the respective ends of the steam drum 1 the attachment theretobeing near the bottom thereof. The pipe 10 at the front of the boileraords a convenient place for attachment of. a water level gauge 12. Tothe coupling 9 at the rear end of the boiler the feed water pipe 13 isconnected, from which point the water leadsl to the rear ends of each ofthe headers 2 and 3 and thence circulates easily between the headersthrough the pipes 6 and 7. The vertical pipes 10 and 11 being connectedwith this circulatory system ad'ord a means of carrying the water ofcondensation from the steam drum 1 back into the system.

The coils l are arranged in two sets, one set having their lower endsconnected to the header 2 and: their upper ends to the drum 1, whiletheother set'is connected at` their lower ends to the header 3 and attheir upper ends to the drum 1. The coils of one Set alternate fromfront to rear with those vof a plurality of runs 14 and 15 extendingracross the heating chamber and connected together by bends 16, each coilbeing continuous, that is, without couplings or sections throughout itslength, and the runs or' each coil being inclined instead of horizontalto promote the rise of the steam .to the drum. Furthermore these coilsare so shaped that succeeding runs 1l and 15 are oli'set from each otherso that any run in one coil will be above a space between the runs oftwo adjacent coils, thus producing a staggered relation which exposesthe runs to the fullest extent to the heat from the burners which aresupposed to be located below the lowest runs ol the coils.

An important feature of my inventionis the tact that every coil has itsupper end attached to the steam drum on the same side as the header islocated to which its lower end is attached. Thus it will he seen withreference to Fig. 2 that the :iront coil whose 'upper end is attached at17 to the right hand side or the steam drum, has its lower end attachedat 18 to the header 3 on the right hand side of the generator. Withcompression couplings located at these two points 17 and 18 it will beseen that any coil can be readily removed entirely from the generator bysimply loosening the two couplings and drawing the coil out sidewisefrom between the two coils where it maybe located. This operation is ofcourse facilitated by removing or opening the side wall of the cover. Incase of the blowing heat as to destroy them or render their separationdiiiicult.

The front vertical pipel() will be located outside of the cover 5 andthe gauge connected thereto will be in plain sight.

The simplicity of this boiler and the accessibility and removability ofits parts renders it especiallyadaptable for use on self propelledvehicles of all kinds.

I claim: i

1. A steam generator comprising two base distributing members disposedo'n opposite sides of the heating chamber, a common distributing memberdisposed at the top of the heating chamber, and two sets of over-.lapping alternately arranged tubes bent upon themselves so as to runback and forth and side by side substantially across the. heatingchamber, one set of tubes being detachably connected to one of the basedistributing members and to the corresponding side of thetopdistributing member and the other set -of tubes being detachablyconnected to the other base distributing member and to the correspondingside of the top distributing member, the succeeding runs of theindividual tubes being arranged in staggered relation so that each runabove the lowermost'is disposed above a space between two runs. v

2. A steam generator comprising two base distributing members, disposedon opposite sides of the heating chamber, a common distributing memberdisposed at the top of the heating chamber, and two sets of overlappingalternately arranged tubes bent upon themselves so as to run back andforth and side by side substantially across the heating chamber, one setof tubes being detachably connected to one of the base distributingmembers and to the corresponding side of the top distributing member andthe other set of tubes being detachably connected to the other basedistributing member and to the corresponding side of the topdistributing member, the runs being inclined upwardly and the bendsconnecting the runs being inclined successively in opposite directions,so as to afford a staggered relation of the runs, the correspondingbends of two adjacent tubes being on opposite sides ofy the heatingchamber and inclined in the same direction.

In witness whereof, I hereunto subscribe my signature.

GEORGE A. BRYAN.

